Feem ntau, kub tsis raug rov qab los ncaj qha. Hloov chaw, cov hlau raug tsoo kom tso tawm kub, uas tom qab ntawd ua rau muaj kev cuam tshuam nrog Sodium Cyanide nyob rau hauv ib qho txheej txheem hu ua cyanidation. Cov txheej txheem no yog tus cwj pwm los ntawm cov tshuaj tiv thaiv hauv qab no: Tom qab cov hlau sib xyaw (NaAu (CN) 2) raug tsim, tshuab txais carbon yuav nqus cov kub cyanide complex los ntawm cov dej kub uas muaj zog (cawv cev xeeb tub).
4 Au + 8(NaCN) + O2 + H2O = 4 NaAu(CN)2 + 4 NaOH

Daim duab saum toj no qhia txog kub KEV NQIS TAWM on Cov pa roj carbon graphite uas ua kom cov pa roj carbon ua haujlwmKub ib leeg xwb tsis yaj tau, thiab yuav tsis yooj yim nqus los ntawm cov pa roj carbon activated kom txog thaum nws raug cyanidated, tsim cov kub-cyanide kev sib koom tes hu ua dicyanoaurate. Nws yog qhov kub-cyanide complex no uas raug nyiam rau thaj chaw loj heev uas muaj nyob rau ntawm cov pa roj carbon activated, uas tso cai rau ntau yam ntawm cov txheej txheem rov qab los.
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- 1Sodium Cyanide 98.3% CAS 143-33-9 NaCN kub hnav khaub ncaws tus neeg sawv cev tseem ceeb rau kev tsuas tshuaj lom neeg kev lag luam
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